Solid state batteries are gaining traction in various applications due to their advantages such as high energy density, faster charging, safety advantages, and long shelf life over conventional batteries. The global solid state battery market size is estimated to grow from USD 62 million in 2020 to USD 483 million by 2027; it is expected to grow at a CAGR of 34.2% from 2020 to 2027. Rising requirement of solid state batteries in electric vehicles, the increasing trend toward the miniaturization of consumer electronics, and growing R&D activities by major companies are a few of the major factors driving the growth of the market.

The below 20 mAh segment is expected to dominate the market in 2020 and hold the majority share of the overall market. Batteries that fall under the capacity range of below 20 mAh are mostly thin-film batteries and are widely used in applications such as packaging, wireless sensors, medical & cosmetic patches, and other low-drain devices. Being compact in size and having limited internal space, these low-drain devices do not require high-capacity batteries for operation. The increasing demand for solid state batteries from the aforementioned applications is expected to drive the market in the near future.

The solid state battery market for secondary battery is expected to grow at a higher CAGR during the forecast period. Thin-film and solid-state chip batteries, the most commonly used batteries, are secondary batteries. Rechargeable batteries are used in medical devices, electric vehicles, wireless sensors, and consumer electronics. With advancements in the technologies used in wearables and medical devices, manufacturers are constantly trying to create innovative designs suitable for such devices, such as bendable, flexible, and high-capacity rechargeable batteries that can last long. Therefore, the demand for secondary micro batteries is high and is expected to increase rapidly during the forecast period.

The market in APAC is expected to grow at the highest CAGR during the forecast period owing to the technological advancements in wearable devices and consumer electronics sectors in this region. The major wearable devices and consumer electronics manufacturers based in APAC, such as Samsung (South Korea), LG Electronics (South Korea), and Panasonic (Japan), are developing the next-generation flexible devices. These devices require power sources that are not only small but also have high-power density to complement the product design; these requirements are fulfilled by thin-film batteries.